High-energy bremsstrahlung in an intense laser field

Journal Article · Mon Sep 01 00:00:00 EDT 1980 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.22.909· OSTI ID:5152170

Schlessinger, L; Wright, J A

The cross section for bremsstrahlung emission and absorption by electrons in an intense laser field has been calculated in the Born approximation for the electron-ion potential. Typical numerical results are presented as a function of the ratio of the electron quiver energy to its energy and the ratio of the bremsstrahlung energy to the electron energy. The intense-field correction factor for the rate of bremsstrahlung emission and absorption for electrons with a Boltzmann distribution of energies has been calculated. Numerical results for the correction factor are presented for the Boltzmann case as a function of the ratio of the electron quiver energy to its thermal energy and the ratio of the bremsstrahlung energy to the thermal energy. For typical laser-fusion parameters, this correction factor which is the ratio of the thermal bremsstrahlung emission rate in the intense laser field to the rate at zero field can be quite significant. For a laser of wavelength 1.06 ..mu..m at an intensity of 3 x 10/sup 15/ W/cm/sup 2/ and an electron temperature of 1 keV, the correction factor varies from 0.98 at a bremsstrahlung energy of 100 V to greater than 5 at a bremsstrahlung energy of 10 keV.

• Research Organization: R and D Associates, P.O. Box 9695, Marina del Rey, California 90291
• OSTI ID: 5152170
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 22:3; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
ABSORPTION
BOLTZMANN STATISTICS
BREMSSTRAHLUNG
CROSS SECTIONS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EMISSION
FERMIONS
INTERACTIONS
LASER RADIATION
LEPTONS
PARTICLE INTERACTIONS
PHOTON-ELECTRON INTERACTIONS
PHOTON-LEPTON INTERACTIONS
PLASMA
RADIATIONS